Tine 2.0 is a Web-based groupware solution that focuses on usability and correctness. To achieve these goals, the project uses usability experts and covers most of the code by unit tests. It contains support for contacts, tasks, calendar, email, CRM, VoIP integration, a time tracker, ActiveSync, and a flexible rights management system.

Mediabird allows students to document and review their study effort using a collaborative notepad.
The Web2.0 application allows for taking notes on a personal notepad. A virtual text marker allows the students to highlight their notes and ask questions about the highlighted parts. The sharing feature allows study groups to share and discuss their notes as well as questions they have created. By-and-by, the students collect answers to the questions. Pairs of questions and answers are collected in a card box that allows for memorizing the important facts later on (e.g. for an exam or presentation). The program is also available as a Moodle activity.

MojoMojo is a Web2.0 wiki with AJAX live preview, hierarchical structure, tags, diffs, pluggable syntax, permissions/ACL, attachments, RSS feeds, a photo gallery, edit conflict resolution via 3-way merge, themes/skinning, localization, built-in full-text search, and a reverse index. Since it's built on top of the Perl Catalyst Web framework, MojoMojo supports any Web server, and includes its own standalone one. It also support any database backend supported by the DBIx::Class ORM, and has been successfully tested with PostgreSQL, SQLite, and MySQL.

Jumper provides an enterprise bookmarking engine for tagging and linking data objects. It lets you search and share high-value data across remote locations using tag metadata (expanded tag fields) to capture knowledge about data in remote data stores. It collects these tag profiles in a knowledge base where user-created tag profiles identify quality data
resources, user-contributed tag information adds
real-world knowledge about the data resources, and
user-created reviews sort out the worthy resources
from the inadequate. Other users can search for this data. In addition, they can directly contribute what they know about this data to the knowledge base. It allows the participants to act as a filter for what is
valuable and build upon mainstream pursuits, but
also uncovers valuable data hidden at the edge.

Moa is an image gallery for people who just want to put up images, not have an entire image social system (ratings, comments, etc). It supports sub-galleries and bulk uploads. It strives to be as easy to use as possible.

PL/JSON is a generic JSON object written in PL/SQL. Using PL/SQL object syntax, users instantiate a JSON objects and then add members, arrays, and additional JSON objects. This object type can store JSON data, in Oracle, persistently.

SnappyJ is a Java library designed to ease Web 2.0 development. It was developed to take the pain out of developing Web pages that asynchronously reload sections of themselves. Performing these types of asynchronous reloads properly and professionally is harder than one might initially expect. The key challenges are loading Indication, support for browser history, error handling, code complexity, and having reloadable sections that interact with each other. SnappyJ completely eliminates these challenges, making it quick and easy to develop complex application-like Web sites.

jjax is a collection of tools and libraries which assist in the development of fat-client style Web applications. jjax provides client-side JavaScript language extensions that greatly simplify usage of the W3C DOM, as well as communications library code that encapsulates XMLHttpRequest calls. jjax also includes Java-based server-side components that perform AJAX request dispatching, JSON data marshaling, and glue code for using the Jetty HTTP library as an alternative to an application server.

Dashboard is a rapid application development framework. It's designed to make writing PHP faster and more secure by removing the repetitive parts of programming from the development cycle. It's suitable for many Web applications, but it is specifically designed for making Web sites that need some custom development for interaction with a database.